Hi, my name is Mike and I have been in the plumbing and plumbing repair field for 20 years. I will be glad to help you today. You will have to turn the filling loop valves off and remove the flexible filling loop hose.
We have just attempted to do this, the pipe just went crazy and sprayed us despite us turning the water off.
Try turning the valve off and then on again. Possibly not seating properly. The
valve may not function at all and need to be replaced before anything can be done.
I haven't heard from you. Was the information I provided helpful?
Have you had the valve replaced or repaired?